351 Answered Questions for the topic astronomy
Long Exposure Pictures (Circular? vs. Streaks. Center Point? Always Same? What is the Star?)
Which type of star would have the longest lifespan?
About gravity my biggest question
How do astronomers measure extreme cosmological distances?
Which of the following is a characteristic of active galaxies?
Now if the star that emitted the photon were traveling AWAY from Earth at 1 x 106 m/s, how much FARTHER from Earth would the star be after one second?
A star with a radius three times that of the Sun and a surface temperature twice that of the Sun, will have a luminosity _______ times as great as the Sun's luminosity.
Objects A and B are orbiting each other. Object A has twice the mass of Object B. What can you say about their orbits?
Why don’t planets fly off into space? What’s keeping them in place? Also try to explain why planets don’t fall directly into the Sun.
pls help me with work
pls help me :))
I'm really confused pls help
Why doesn't the earth fall into the sun? Is it because the centrifugal force cancels out the centripetal force?
As the work done by the Sun on Earth is 0, so is this the reason for earth not falling into the sun?
pls help me with this
photons and how the massless atom miraculously weighs less than an electron
identify and explain what of the solar event has just been described are the danger from the solar event more likely to damage satellites ground-based power grids and unprotected astronauts
A star with a radius like that of the Sun and a surface temperature three times that of the Sun, will have luminosity ______ times as great as the Sun’s luminosity.
Life in the universe.
How can a black hole be electricaly charged if it sucks up all matter (including electrons and protons)
Electromagnetic waves carry energy.